<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <table border="1">
        <caption> 标题</caption>
        <tr>
            <th> 表头</th>
            <th> 表头2</th>
        </tr>
        <tr>
            <td> 单元格1</td>
            <td> 222</td>
        </tr>
        <tr>
            <td> 333</td>
        </tr>
    </table>
    

    <table>
        <caption>
            title
        </caption>
        <thead>
            <tr>
                <td> line1</td>
                <td> line2</td>
                <td> line3</td>
            </tr>

        </thead>
    </table>
</body>
</html>